中国神经再生研究(英文版) ›› 2023, Vol. 18 ›› Issue (12): 2762-2766.doi: 10.4103/1673-5374.373659

• 原著:周围神经损伤修复保护与再生 • 上一篇    下一篇

不同延迟时间靶向肌肉神经支配的神经功能重建

  

  • 出版日期:2023-12-15 发布日期:2023-06-16
  • 基金资助:
    国家自然科学基金项目(U191360181927804,81960419,82260456);广东省重点领域研究与发展计划项目(2020B09020004)

Nerve function restoration following targeted muscle reinnervation after varying delayed periods

Yuanheng Li1, #, Jiangping Huang1, #, Yuling Chen2, 3, Shanshan Zhu1, Zhen Huang2, 3, Lin Yang1, *, Guanglin Li1, *   

  1. 1Key Laboratory of Human-Machine Intelligence-Synergy Systems and Branch of Shenzhen Institute of Artificial Intelligence and Robotics for Society, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong Province, China; 2Department of Rehabilitation Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China; 3Department of Rehabilitation Medicine, Yibin Hospital of Traditional Chinese Medicine, Yibin, Sichuan Province, China
  • Online:2023-12-15 Published:2023-06-16
  • Contact: Guanglin Li, PhD, gl.li@siat.ac.cn; Lin Yang, PhD, aiyzwll@aliyun.com.
  • Supported by:
    This work was supported in part by the National Natural Science Foundation of China, Nos. U1913601, 81927804; the Key-Area Research and Development Program of Guangdong Province, No. 2020B0909020004 (GL); the National Natural Science Foundation of China, Nos. 81960419, 82260456 (both to LY).

摘要:

靶向肌肉神经支配技术可促进截肢患者神经功能的恢复,但临床上由于多种原因往往存在延期手术的现象,但在不同失神经周期时进行延迟性靶向肌肉神经支配手术是否会影响功能重建的有效性,目前尚不清楚。此次实验横断大鼠前肢的正中神经和肌皮神经,分别在即刻、2和4周时将近端正中神经残端缝合到远端肌皮神经残端,以重新支配肱二头肌来重建正中神经的功能。延迟性靶向肌肉神经支配手术后可见肱二头肌均存在明显的肌电信号,且其波幅随时间延长逐渐增加。在不同延迟时间进行靶向肌肉神经支配手术的大鼠的肱二头肌肌电信号、肱二头肌肌纤维形态以及上肢梳理行为均无明显差异。这一结果表明延迟4周进行靶向肌肉神经支配手术仍能获得与即刻手术相似的的神经功能重建效果。

https://orcid.org/0000-0001-9016-2617 (Guanglin Li); https://orcid.org/0000-0003-1372-8677 (Lin Yang)

关键词: 神经转移, 延迟靶向肌肉神经支配, 肌内肌电信号, 植入电极, 正中神经, 肱二头肌, 梳理实验, 运动功能, 功能重建, 延迟性神经修复

Abstract: Targeted muscle reinnervation has been proposed for reconstruction of neuromuscular function in amputees. However, it is unknown whether performing delayed targeted muscle reinnervation after nerve injury will affect restoration of function. In this rat nerve injury study, the median and musculocutaneous nerves of the forelimb were transected. The proximal median nerve stump was sutured to the distal musculocutaneous nerve stump immediately and 2 and 4 weeks after surgery to reinnervate the biceps brachii. After targeted muscle reinnervation, intramuscular myoelectric signals from the biceps brachii were recorded. Signal amplitude gradually increased with time. Biceps brachii myoelectric signals and muscle fiber morphology and grooming behavior did not significantly differ among rats subjected to delayed target muscle innervation for different periods. Targeted muscle reinnervation delayed for 4 weeks can acquire the same nerve function restoration effect as that of immediate reinnervation. 

Key words: biceps brachii, delayed nerve repair, delayed targeted muscle reinnervation, functional reconstruction, grooming test, implanted electrode, intramuscular myoelectric signals, median nerve, motor function, nerve transfer